Prime Minister Manmohan Singh's disclosure that during his recent Beijing visit he raised the issue of international rivers flowing out of Tibet underscores the enormous implications of China's hydro-engineering projects and plans. ...

Rights groups and media experts on Saturday gave a cautious welcome to China's decision to allow foreign reporters greater freedom and urged Beijing to extend the same rights to domestic journalists. ...

Autumn temperatures in the Arctic are at record levels, the Arctic Ocean is getting warmer and less salty as sea ice melts, and reindeer herds appear to be declining, researchers reported Thursday. ...